BMW 7 Series Active Hybrid Live Pic: 2009 LA Auto Show

Like Lexus, BMW has opted to go the performance route with its large hybrid sedan. The 7 Series Active Hybrid utilizes a 20-hp electric motor that's sandwiched between the twin-turbo V8 and the 8-speed automatic transmission. A 0.4-kwh lithium-Ion battery pack provides the electrical energy. Like Honda's IMA, the electric motor replaces the starter and the alternator and feeds in extra power when needed. BMW claims the $103,000 sedan squirts to 60 mph in just 4.7 seconds.